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We found 26 dictionaries with English definitions that include the word ultra-: Click on the first link on a line below to go directly to a page where "ultra-" is defined. General (21 matching dictionaries) ultra-: American Heritage Dictionary of the English Language [home, info] ultra-: Collins English Dictionary [home, info] ultra-: Macmillan Dictionary [home, info] ultra-: Wordnik [home, info] ultra-: Cambridge Advanced Learner's Dictionary [home, info] Ultra-: Wiktionary [home, info] ultra-: Compact Oxford English Dictionary [home, info] ultra-: Webster's New World College Dictionary, 4th Ed. [home, info] ultra-: The Wordsmyth English Dictionary-Thesaurus [home, info] ultra-: Dictionary.com [home, info] ultra-: Online Etymology Dictionary [home, info] ultra-: Cambridge Dictionary of American English [home, info] Ultra-: Wikipedia, the Free Encyclopedia [home, info] Ultra-: Online Plain Text English Dictionary [home, info] ultra-: Webster's Revised Unabridged, 1913 Edition [home, info] Ultra-: AllWords.com Multi-Lingual Dictionary [home, info] ultra-: MyWord.info [home, info] ultra-: Free Dictionary [home, info] ultra-: Dictionary/thesaurus [home, info] Art (1 matching dictionary) ultra-: A Cross Reference of Latin and Greek Elements [home, info] Medicine (3 matching dictionaries) ultra-: online medical dictionary [home, info] ultra-: Neurotrauma Glossary [home, info] ultra-: Medical dictionary [home, info] Miscellaneous (1 matching dictionary) ULTRA-: Acronym Finder [home, info]

Quick definitions (ultra-) (a.) A prefix from the Latin ultra beyond (see Ulterior), having in composition the signification beyond, on the other side, chiefly when joined with words expressing relations of place; as, ultramarine, ultramontane, ultramundane, ultratropical, etc. In other relations it has the sense of excessively, exceedingly, beyond what is common, natural, right, or proper; as, ultraconservative; ultrademocratic, ultradespotic, ultraliberal, ultraradical, etc. (This definition is from the 1913 Webster's Dictionary and may be outdated.) ▸ Word origin